The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 11, 1984
Filed:
Jan. 06, 1983
Applicant:
Inventors:
Assignee:
Asahi Glass Company Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
525386 ; 5253262 ;
Abstract
A process for producing a carboxyl group-containing fluoropolymer comprises reacting a hydroxyl group-containing fluoropolymer in an organic solvent with a dibasic acid anhydride represented by the general formula ##STR1## where R represents a bifunctional organic group, to convert at least a part of hydroxyl groups into ester groups represented by the general formula ##STR2## where R is as defined above.